Radial Nerve Lesion refers to damage or injury to the radial nerve, which is one of the major nerves in the upper extremity of the human body. The radial nerve originates from the brachial plexus, a network of nerves that begins in the neck and extends down the arm. It runs along the posterior aspect of the upper arm, wraps around the humerus bone, and travels down the forearm, branching to innervate various muscles and provide sensory output to the skin.
When this nerve is lesioned, it can result in a range of symptoms depending on the location and severity of the damage. Common signs of a radial nerve lesion include weakness or paralysis of the muscles that extend the wrist, fingers, and thumb. This can lead to difficulty in performing gripping, grasping, and fine motor tasks. Sensory changes, such as numbness or tingling, can also occur on the back of the hand, thumb, index finger, and middle finger.
Radial nerve lesions can be caused by various factors, including trauma, fractures of the humerus or radius bones, compression or entrapment of the nerve, tumors, or systemic diseases like diabetes. Treatment options for radial nerve lesions may include physical therapy, medications for pain management, orthotics to support the affected hand, and in some cases, surgical intervention.
Early diagnosis and intervention are crucial in managing radial nerve lesions to promote recovery and prevent long-term complications. Rehabilitation programs are often recommended to help individuals regain strength, coordination, and function in the affected hand and arm.
